请问如何得到系统的版本？

Question

我的程序中想实现这样一个功能：用delphi得到操作系统的版本号？如windows2000,windows98,windows xp,windows me,请问该如何编程实现，谢谢！

Answer 1

才20分呀，呵呵~~~~
procedure TMainForm.FormCreate(Sender: TObject);
var
  osinfo: OSVERSIONINFO;
begin
  osinfo.dwOSVersionInfoSize:=sizeof(OSVERSIONINFO);
  GetVersionEx(osinfo);
  if (InttoStr(osinfo.dwMajorVersion)+'.'+IntToStr(osinfo.dwMinorVersion)+'.'+IntToStr(osinfo.dwBuildNumber))='5.0.2195' then
   ShowMessage('这是windows 2000');
end;
其他操作系统你一测试就知道了

Answer 2

function GetOSInfo: string;
var
  Platform: string;
  BuildNumber: Integer;
begin
  case Win32Platform of
    VER_PLATFORM_WIN32_WINDOWS:
      begin
        Platform := 'Windows 95';
        BuildNumber := Win32BuildNumber and $0000FFFF;
      end;
    VER_PLATFORM_WIN32_NT:
      begin
        Platform := 'Windows NT';
        BuildNumber := Win32BuildNumber;
      end;
      else
      begin
        Platform := 'Windows';
        BuildNumber := 0;
      end;
  end;
  if (Win32Platform = VER_PLATFORM_WIN32_WINDOWS) or
    (Win32Platform = VER_PLATFORM_WIN32_NT) then
  begin
    if Win32CSDVersion = '' then
      result := Format('%s %d.%d (Build %d)', [Platform, Win32MajorVersion,
        Win32MinorVersion, BuildNumber])
    else
      result := Format('%s %d.%d (Build %d: %s)', [Platform, Win32MajorVersion,
        Win32MinorVersion, BuildNumber, Win32CSDVersion]);
  end
  else
    result := Format('%s %d.%d', [Platform, Win32MajorVersion,
      Win32MinorVersion])
end;

Answer 3

unit Unit1; interface uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, CommDlg; type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end; 
type
  TOSVersion = (osUnknown, os95, os95OSR2, os98, os98SE, osNT3, osNT4, os2K, osME, osXP); var
  Form1: TForm1; implementation {$R *.DFM} function GetOS :TOSVersion; 
var
  OS :TOSVersionInfo; 
begin
  ZeroMemory(@OS,SizeOf(OS));
  OS.dwOSVersionInfoSize:=SizeOf(OS);
  GetVersionEx(OS);
  Result:=osUnknown;
  if OS.dwPlatformId=VER_PLATFORM_WIN32_NT then begin
    case OS.dwMajorVersion of
      3: Result:=osNT3;
      4: Result:=osNT4;
      5: Result:=os2K;
    end;
    if (OS.dwMajorVersion=5) and (OS.dwMinorVersion=1) then
      Result:=osXP;
  end else begin
    if (OS.dwMajorVersion=4) and (OS.dwMinorVersion=0) then begin
      Result:=os95;
      if (Trim(OS.szCSDVersion)='B') then
        Result:=os95OSR2;
    end else
      if (OS.dwMajorVersion=4) and (OS.dwMinorVersion=10) then begin
        Result:=os98;
        if (Trim(OS.szCSDVersion)='A') then
          Result:=os98SE;
      end else
        if (OS.dwMajorVersion=4) and (OS.dwMinorVersion=90) then
          Result:=osME;
  end; 
end; 
procedure TForm1.Button1Click(Sender: TObject); 
var 
os:TosVersion; 
osVersion:string; 
begin
  os:=Getos;
      case OS of
    os95, os95OSR2: OSVersion:='Windows 95';
    os98: OSVersion:='Windows 98';
    os98SE: OSVersion:='Windows 98 第二版';
    osME: OSVersion:='Windows Millenium Edition';
    osNT3, osNT4: OSVersion:='Windows NT';
    os2K: OSVersion:='Windows 2000';
    osXP: OSVersion:='Windows XP';
  end;
   showmessage(osversion); 
end; end.